from urllib.parse import unquote
params = "start=25&sort=time&playable=0&sub_type=#"
param = {}
for p in params.split("&"):
    if "=" in p:
        name,value = p.split("=", 1)
        param[name.strip().replace(" ","")] = unquote(value.strip()).replace(" ","")
print(param)

